Scientists have confirmed the existence of the elusive Mexican hornshark ( Heterodontus mexicanus ), off the coast of Isla Herradura near Playa Jacó on the central Pacific. The species, previously reported to exist only in certain Central American Pacific waters and Mexico, but was not known to inhabit Costa Rican waters.

“It's a very rare species to start out with,” said Randall Arauz, president of the Marine Turtle Restoration Program (PRETOMA). “The fishermen themselves don't have a name for it. Very little is known about this species.”

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